Transmission-gear.



N6- 826,309. PATENTED JULY 17, 1906. W. L. BUCK.

TRANSMISSION GEAR. APPLICATION rum) saw. 2, 1905.

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TRANSMISSION-GEAR.

Specification of Letters Patent.

Patented July 1'7; 190B.

Application filed September 2, 1905. Serial No. 276,802.

To all whom it may concern.-

Be it known that I, WILLIAM L. BUCK, a citizen of the United States, and a resident of the city of New York, borou h of Brooklyn, in the county of Kings an State of New York, have invented a new and Improved Transmission-Gear, of which the following is a full, clear, and exact description.

The invention relates to a mechanism for transmitting rotary motion at different speeds and in opposite directions. It is ap plicable to various uses, notably in automobile transmission and for transmitting from gasolene motors in marine propulsion.

The invention is of that class in which friction-gears are employed, the change of speed and direction being accomplished by the relative movement of gears, which are meshed the periphery of one gear against the face of the other.

The invention resides in certain special features of construction and relative arrangements of part, which will be fully set forth hereinafter and particularly pointed out in the claims.

Reference is had to the accompanying drawings, which illustrate the preferred form of my invention, and in which- Figure l is a side elevation of the invention, and Fig. 2 is a plan view thereof. a indicates the drive-shaft, which is connected by a universal joint I) with a swingshaft 0. Said shaft is carried in a box 01, which is fastened to the free end of the swingplate or equivalent member 6.

f indicates the stationary part on which the member 6 is mounted so that it may swing, as indicated by the broken lines in Fig. 2. A bracket or pedestal d, supporting the box d, has a projecting lug (1 which overhangs the bed-plate g, thus assisting to support the outer end of the swing-plate and parts (1 d and c in connection therewith. At its free end the swing-shaft c carries a friction-disk h, forming one of the transmittinggears, this disk having a convex face h, in

the center of which is formed a cavity 7?, the

function of which will hereinafter fully appear. The bed-plate g carries a bracket i, which supports the axle k of a bevel friction gear or disk 7c. This disk is arranged dia onally with respect to the normal or middT position of the shaft 0, and its beveled periphery is adapted to engage the face h of the gear h, as shown. The bracket 0) has its base formed with slots i, in which bolts i operate adjustabl'y' to hold the bracket. Said bracket is adjustably held by screws 1?, as shown. In this manner the parts may be adjusted to take up wear. The shaft c is free to swing without disturbin the engage= ment between the parts it and and it will thus follow that the gear is will be driven from the gear h in one or the other direction, according to which side of the gear it is en'- gaged by the gear 70. When the parts are in the intermediate position, (shown in Fig. 2,) no movement will be transmitted, and in order to prevent grinding or wearing away the gears when in this position the cavity 71. is formed, this cavity avoidin contact between the two gears when in t e position referred to. The bed-plate 9 also carries a pedestal-bearin Z, in which a shaft m is revolubly mounte Said shaft carries an internal bevel friction-gear n, which is engaged with the beveled periphery of the gear k at the side opposite that on which the gear h is located. The gears and n do not change their relative positions, the bearings of both of these gears being rigidly attached to the bedlate 9. Motion is therefore transmitted rom the gear h to the gear 7c and from this gear to the gear n.

By adjusting the shaft 0 the shaft m may be driven in either direction and at any speed within the maximum speed, which is determined by the length of the radius of the wheel or gear h.

Any suitable means may be connected with the element 6 and the element 0 for swinging them. The specific form of these devices depends upon the use to which the transmission-gear is put.

Having thus described the preferred form of my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In a transmission mechanism, the combination of a laterally-shiftable gear, a second gear having its periphery engaged with the face of the first gear, and an internal bevel-gear engaged with the periphery of the second-named gear.

2. A transmission mechanism having a laterallyshiftable gear or wheel with a convex friction-face, a bevel frictionear having its periphery engaged with sai frictionface, and an internal friction-gear en aged with the periphery of the second or evel gear.-

3. In a transmission mechanism, the combination of a laterally-slfiftable gear having a convex friction-face, an intermediate gear having a beveled friction-face engaged with the friction-face of the first gear, the intermediate gear being mounted on a fixed axis, and an internal friction-gear engaged. with the intermediate gear.

4c. In a transmission mechanism, the combination of a laterallyshiftable gear having a convex friction-face, an intermediate gear having a beveled friction-face engaged With the friction-face of the first gear, the intermediate gear being mounted on a fixed axis,

and an internal friction-gear engaged With the intermediate gear, said internal friction-gear having a beveled friction-surface, and the aXis of the internal gear ranging diagonally of the aXis of the intermediate gear.

5. In a transmission mechanism, the combination of a laterally-shiftable gear, a second gear havin its periphery engaged With the face of the 'rst gear, the second gear being beveled, and a bevel-gear engaged With the second-named gear and driven there from.

In testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses.

WILLIAM L. BUCK.

Witnesses:

ISAAC B. OWENs, J NO. M. RITTER. 

